Gun.



' PATBNTBD MAY 5, 1903.

J. BECKER.

GUN. APPLICATION FILED APR. 30. 1907.

2 SHEETS-SHEET 1.

w g MW No. 886,576 PATENTED MAY 5,1908; J. BECKER.

' GUN.

APPLICATION FI LEI) APR. 30, l9 07.

2 SHEETBSHEET 2 Q X Figi'i Fig. 41.

mam

UNTTED GTATEB PATENT OFFTCE.

JULIUS BECKER, OF ESSEN-ON-THE-RUHR, GERMANY, ASSIGNOR TO FRIED. KRUPP AKTIENGESELLSUIIAFT, OF ESSEN-ON-THE-RUHR, GERMANY.

GUN.

Specification of Letters Patent.

Patented May 5, 1908.

Application filed April 30, 1907. Serial No. 371,143.

T 0 all whom it may concern:

Be it known that I, JULIUS BECKER, a subject of the Emperor of Germany, and a resident of 22 .l-lohenzollernstrasse, Essen-onthe-Ruhr, Germany, have invented certain new and useful Improvements in Guns, of which the following is a specification.

Thevpresent invention relates to guns hav ing swing-mounts and the object of the invention is to provide guns of this type with a sighting device which has independent sighting line and which retains the adjusted direction at the target even in case the swing does not return completely to its firing position after firing.

In the accompanying drawings: Figure 1 is a side view of an embodiment of the invention with some parts assumed as broken away; Fig. 2 is a view corresponding to that shown in Fig. 1 but with positions of some of the parts changed; Fig. 3 shows a part of Fig. 2 on an enlarged scale and partly in section; and Fig. 4 is a section on line 44, Fig. 3, looking from above.

By means of horizontal trunnions, one of which (a) is shown in Fig. 4, the gun barrel A is in the known manner carried by a barrel carrier or swing B B which is in the form of a two-armed lever. The carrier is swingingly mounted on a horizontal shaft D secured in the walls O O of the mount. The arm Bof the barrel carrier has jointed connection with the piston rod 6 of a fluid brake which has its cylinder E swingingly mounted in the walls of the mount and contains a recuperator spring (not shown in the drawings). The elevating mechanism is also of known con struction and is provided with a toothed sec,

tor F which is turnable on the shaft D and has its arm f connected with the gun barrel by means of a link F The sector F meshes with a toothed wheel F which is mounted on a shaft F j ournaled in the walls O O of the mount. The shaft F carries a worm wheel F which meshes with a worm F journaled in the wall O of the mount, the shaft of the worm being provided with a hand wheel F. A turning mechanism of known construction serves to secure the horizontal adjustment or training.

One (a) of the two trunnions of the gun barrel is provided with a cylindrical extension M (Fig. 4) having its axis coinciding with the axis of the trunnion. The extension a forms the pivot for a bell crank lever G G which in the following will be referred to as the sight carrier. One end of a link H (Figs. 1 and 2) is pivotally connected to the arm G of the sight carrier. The other end of the link is jointed to a bearing a which is arranged on the wall C of the mount. The arrangement and the dimensions of the parts are selected in such a manner that the barrel carrier arm B, the link H, the arm G of the sight carrier and the bearing 0 with the wall 0 of the mount form a parallel link system. The arm G of the sight carrier terminates in an arcuate track G which is provided with a groove 9 curved concentrically with the axis of the horizontal trunnions.

An elevation segment K carrying on its lower end a sight telescope L is guided in the track G by means of a rail it" engaging in the groove g The guide rail 7c is provided with teeth k which mesh with a worm gear 9 of known construction journaled in the track G". The elevation segment K carries a scale M on which can be adjusted a mark a (Fig. 3) of an indicator A which is rigidly con nected to the extension a.

The mode of laying the gun is as follows: Let it be assumed that the parts are in the positions shown in Fig. 1, in which the sighting line and the axis of the bore of the barrel are horizontal, and the barrel carrier B B is in its normal firing position. By means of the turning mechanism, the lateral direction or horizontal training is first adjusted and if necessary, viz. when the target is outside of the horizontal plane through the sighting line, the sighting line is directed at the target by means of the worm gear g k Thereupon the gun barrel is elevated by turning the hand wheel F the indicator A partaking of the movement of the gun barrel' As soon as the mark of of the indicator A registers with the division line of the scale M corresponding to the distance of the target the necessary elevation has been imparted to the gun barrel. From the above explanations, it follows that the sighting device in the present case is one with so-called independent sighting line. After the firing, the barrel-carrier B B swings rearwardly overcoming the resistance of the fluid brake and the recuperator spring, and the carrier again swings forwardly under the action of the recuperator spring. On this movement of the barrel carrier, the arm G of the sight carrier is subjected to a parallel displacement which is also partaken of by the sighting line which consequently remains parallel to its original position at any posi tion of the barrel carrier. The sighting line will, therefore, point at the target with an accuracy that is completely su'l'licient in practice, also in case the barrel carrier does not swing entirely forward to its normal firing position but comes to rest a little prior to reaching this position so as to occupy, for instance, the angular position shown in Fig. 2. This is likely to occur in guns having swing-mounts. When a stationary target is fired at, and the sighting line has once been adjusted at the target, it is consequently not necessary to again take aim at the target; it

suffices to adjust the mark a of the indicator A to the division line of the scale M that corresponds to the range.

Having thus described the invention, what v is claimed as new and desired to secure by tion that the barrel carrier can assume in any 30 one vertical plane.

2. The combination with the barrel and the mount, of a parallel link system comprislng a swinglng barrel carrier, a sight carswinging barrel carrier and the barrel carried thereby; of a sight carrier movably arranged. on apart partakingot the swinging 1novement of the barrel carrier and comprising a b 7 one arm and an elevation se ment ad- 7 h I ustable on the track; a sighting device carried by the segment; an indicator fixed on A double armed lever, an arcuate track carried I the part carrying the sight carrier, and a link 50 connecting the sight carrier and the mount.

The foregoing specification signed at Dusseldorf, Germany, this thirtieth day of March, 1907.

JULIUS BECKER.

Letters Patent is:

1. The combination with a swinging barrel carrier and the barrel carried thereby, of a sight carrier movably arranged on a part partaking of the swinging movement of the barrel carrier, a sighting device carried by the sight carrier, and means causing the sight line of the sighting device to be maintained In presence of M. ENGELS,

parallel to its original position for any posi- ALFRED POHLMEYER. V 

